Side-delivery hay-rake.



'No. 722,931. PATENTED MAR. 17, 1903.

H. A. ADAMS.

SIDE DELIVERY HAY RAKE.

APPLICATION FILED MAR. 29, 1902.

N0 MODEL. 2 SHEETS-SHEET 1.

\ N "I? I i PATENTBD MAR. 17, 1903.

H. A. ADAMS. SIDE DELIVERY HAY RAKE;

APPLICATION FILED MAR. 29, 1902.

2 SHEETS-SHEET 2.

N0 MODEL.

m: NORRIS PETERS co, PNGTO-LITHQ. WASHINGTON. n, c.

UNITED STATES ATENT OFFICE.

HENRY A. ADAMS, OF SANDWICH, ILLINOIS.

SllDE-DELIVERY HAY-RAKE.

SPECIFICATION forming part of Letters Patent No. 722,931, dated March1'7, 1903.

Application filed ivrmh 29,1902.

To all whom it may concern.-

Be it known that I, HENRY A. ADAMS, a citizen of the United States, anda resident of Sandwich, county of Dekalb, and State of Illinois, haveinvented certain new and useful Improvements in Side-Delivery Hay-Rakes,of which the following is aspecification and which are illustrated intheaccompanying dra'wings,'forming a part thereof. 7

This invention relates to improvements in side-delivery hay-rakesthat isto say, rakes of that character which deliver the hay or grain at oneside thereof in the form of continuous windrows parallel to thedirection of movement of the machine.

The invention consists of. the arrangement and combination of partshereinafter fully described, particularly designated in the claims, andis illustrated inthe accompanying drawings, in which- 7 Figure 1 is aperspective of a side-delivery rake constructed in accordance with myinvention. Fig. 2 relates to a detail of the caster-wheel supporting therear end of the rakeframe. Fig. 3 is a front elevation of one of therotating cross-arms carrying the rakes. Fig. 4 is a section on the lineso a: of Fig. 3. Fig. 5 is a sectional detail, partially in elevation,of the central shaft and stationary sprocket-wheel through the medium ofwhich the planetary movement of the rakes is maintained. Fig. 6illustrates a modification of the sprocket-wheels to which are fixed therake-shafts, and Fig. 7 is a section on the line 11 y of Fig. 6.

The supporting-frame of the machine may consist, as illustrated, of thefront and rear beams or sills 10 and 11, respectively, and

side beams 12 and 13, secured together or braced in any desired manner,the rear beam being at an angle with regard to the beam 10 and the sidebeam 12 being elevated above the front and rear beams of the frame inorder to provide a suitable space in the frame for the rotatingrake-frame hereinafter described.

The frame is mounted on an axle 14:, provided with the usualcarrying-wheels 15, and the rear thereof is supported by a casterwheel16.

Journaled at one end on the beam 13 and Serial No. 100,634- No model.) j

at the other on a stub-beam 17 at the opposite side of the frame of themachine, and, as shown, extending obliquely to the direction ofmovemeutlof the machine, is a shaft 18, to which motion is imparted by abeveled pinion 19, driven by a bevel-gear 20, mounted on the axle 14.

Two rakes are employed and comprise the heads 21, located at oppositesides of and parallel to theshaft 18 and secured by clamps 22 to shafts23, journaled on theopposite ends of cross-arms 24 2a, which arefastened on the shaft 18, and the heads 21 are provided with teeth 25,which for greater security are turned about the shafts 23. The ends ofthe shafts 23 adjacent to the side beam 13 have keyed thereto sprockets26 26, around which passes a chain 27,'the said chain also passing atopposite sides of an intermediate stationary sprocket-wheel 28,which'may be fixed to or made integral with the bearing 29, fastened tothe beam 13 and in which one end of the shaft 18 is journaled.

The rake-teeth are set in a substantially perpendicular position, and byreason of the relative motion of the shafts 23 with regard to the shaft18, to which the heads carrying the rake-teeth are secured, the saidteeth are always maintained in this position.

Secured to the rear beam 11 and a supplemental brace-beam 30 is a seriesof downwardly-curvedguards 31, so related to the rake-teeth that thelatter pass between the guards in their lowermost position and projectbelow the same. These guards are designed to prevent the material frombeing lifted by the rake-teeth and to facilitate the delivery thereof totheside of the machine.

In order to adjust the rake-teeth with reference to the ground, thespindle 32 of the castenwheel frame is fitted in a sleeve 33, secured tothe rear-end of the frame of the machine and the upper end of which isinternally threaded to receive a bolt 34, against which the spindleabuts. By screwing the bolt 34 in or out the rear end of the frame maybe raised or lowered at will.

Any suitable clutch mechanism controlled by the lever 35 may be employedfor throwing the gear 20 out of action when the machine is not raking,and, if desired, an additional brace in the form of the side beam 36 maybe employed to add to the rigidity of the supporting-frame.

In operation the rakes will be driven through the medium of theintermediate gearing in the direction indicated by the arrow, and thesprocket-chain 27,being carried bodily around the fixed sprocket 28, theshafts 23 will be held against rotation irrespective of the rotation ofthe cross-arms 24 24, the rakes having a planetary movement about theshaft 18, so that at whatever angle the rake-teeth may have beenoriginally fixed that angularity will be maintained.

The teeth of the sprocket-wheels 26 26 are formed with abrupt shouldersopposed to the direction of travel of the rotatable rake-frame, whichare designed to better overcome the resistance of the rake-teeth indragging against the ground, and the other face of the teeth is roundedto permit the teeth to more readily enter and leave the links of thechain.

To prevent the sprocket-chain 27 from sagging away from the under sideof the sprocket 28 when the cross-arm 24 is in a horizontal position, asseen in Fig. 3, idlers 37 are provided at diagonallyopposite edges ofthe cross-arm 24, over which the chain moves. In the constructionsillustrated each idler is mounted on a sleeve 38, through which passes abolt 39, between whose head and the sleeve the cross-bar is clamped by anut 40, holding the idler in place. The bolts 39 pass through transverseslots 41, permitting lateral adjustment of the idlers toinsure theproper tension on the chain 27.

To reduce the machine to its most compact form for shipping, thecross-arms 24 .24 are turned so as to lie in a horizontal position, andwhen thus disposed the rake-teeth would normally point downward,rendering them liable to being broken OK or bent out of shape from roughhandling. To avoid this, the parts are so constructed that therake-teeth may be turned out of the Way or inwardly toward the shaft 18without removing the sprocketchain 27. To this end each of thesprocketwheels 26 26 comprises an inner or hub section 42, in which oneof the shafts 23 is fastened, and an outer or tooth section 43, the twosections of each sprocket being fastened together by bolts 44, passingthrough apertures at diametric points in the.hub-section, and curvedslots 45, alined with the apertures and located at opposite sides of thecenter of the sprocket and concentric therewith. The slots 45 are ofsuch length that the hub-sections are limited to movement through ninetydegrees, and when the parts are in operative position the bolts 44 arelocated at the rear end of the slots with reference to the sense ofrotation indicated by the arrow in Fig. 3, so that the strain on thesprockets due to the dragging of the rakes will be borne by the solidportions of the tooth-sections of the sprockets.

Referring particularly to Fig. 3, in order to swing the rake-teeth tothe shipping position the bolts of the sprocket-wheel 26 are loosenedand the hub-section turned until the bolts reach the other end of theslots, the rake-teeth then pointing inwardly, and maintained in thatposition by securing the bolts again. To similarly adjust the otherrake, the bolts securing the two sections of the sprocket 26 togetherare removed and the hub-section given one-quarter turn to the left,thereby bringing each of the bolt-apertures of the hub-section intoalinement with the adjacent end of the other curved slot, and the boltsare then inserted again and secured.

While I have shown the tooth-section of the sprocket-wheel 26 withslots, it will be obvious that the same results may be secured byproviding apertures coinciding with the ends of the slots shown. Thisadvantage results from the employment of the slots, however, that therake-teeth of the sprocket 26 may be turned inwardly toward the machine"or in the same direction as the rake-teeth of the sprocket 26 insteadof toward the latter sprocket without separating the sprocket-sections,as is necessary when the apertures only are provided. It is preferred,however, for the greater protection of the rake-teeth to turn theminwardly, as first described.

To provide for the removal and insertion of the bolts 44 of thesprocket-wheel 26 when the rakes are being adjusted in the manner aboveexplained, the cross-arm 24 is provided with apertures 46 back of theends of the curved slots 45 of the said sprocket-wheel, while theopposite end of the cross-arm is provided with only a single pair ofsuch'apertures, the position of the bolts for securing the two sectionsof the other sprocket-wheel never being changed.

To restore the parts to their normal working position, the operationjust described is reversed.

In Figs. 6 and 7 a modification of the sprockets 26 26 is illustrated.In this construction the tooth-section 43 is provided with recesses 46at opposite sides of the shaft 18, designed to seat studs 47, projectingfrom the adjacent face of the hub section 42. This arrangement providespositive shoulders to resist the strain on the sprockets and permits, inthe case of the sprocket corre-- sponding to 26 of the structurepreviously described, the securing-bolts 44 being located at theopposite end of the slots, so that the adjustment for shipping may bemade without removing any of the bolts-that is to say, referring to Fig.6, to turn the raketeeth to the right or inwardly it is only necessaryto loosen the nuts securing the bolts 44 and turn the hub-section untilthebolts reach the end of the slots and then screw the nuts up again.

To insure the securing of the sprocket-sections in proper relation toeach other when setting up the rake, one of the studs and its ICCcomplementary recess are made longer than the other stud and itscompanion recess, as shown in Fig. 7. 4

I claim as my invention- 1. In a rake, in combination, asupportingframe, a shaft journaled on the frame and provided withcross-arms, a stationary sprocketwheel concentric with the shaft, a pairof rakes each having its head pivoted in the cross-arms, asprocket-wheel to which each rake is secured and which rake isadjustable with relation thereto through ninety degrees, means forsecuring the rake in its adjusted position, and a chain turning over thesprocket- Wheels and engaging the fixed sprocket-wheel.

2. In a rake, in combination, a supportingframe, a shaft journaled onthe frame and provided with cross-arms, a stationary sprocket concentricwith the shaft, a pair of rakes pivoted to the opposite ends of thecross-arms, a sprocket-wheel to which each rake is fixed and comprisingan inner or hub section and an outer or tooth section, one of whichsections is provided with a slot concentric with the axis thereof, boltspassing through the othersection and the said slot, and a sprocketchainturning over the sprocket-wheels of the rakes and engaging thestationary sprocketwheel.

3. In a rake, in combination, a supportingframe, a shaft journaled onthe frame, crossarms fixed to the shaft, shafts journaled at oppositeends of the cross-arms, rake-heads clamped to the shafts, a sprocketfixed to each of said shafts and comprising an inner or hub section andan outer or tooth section, one of which sections is provided with arecess to receive a stud projecting from the other section, thetooth-section being provided with slots concentric with the axisthereof, bolts passing, through the hub-section and the said slots, thesaid slots being of a length sufficient to permit of the turning of thehub-section through ninety degrees, and a sprocket-chain turning overthe sprocket-wheels of the rakes and engaging the stationarysprocket-wheel.

4. In a rake, in combination, a supportingframe, a shaft journaled onthe frame and provided with cross-arms, means for transmitting motion tothe shaft, a pair of rakes each having its head pivoted in one of thecross-arms, a wheel to which each rake is secured and which rake isangularly adjustable with relation thereto, means for securing the rakein its adjusted position, a stationary gear concentric with the shaft,and operative connection between the gear and the wheels to which therakes are secured.

5. In a rake, in combination, a supportingframe, a shaft journaledou theframe and provided with cross-arms, means for transmitting motion to theshaft, a stationary sprocket-wheel concentric with the shaft, a pair ofrakes each having its head pivoted in the cross-arms, a sprocket-wheelto which each'rake is secured and which rake is angularly adjustablewith relation thereto, means for secu ring the rake in its adjustedposition, and a chain turning over the sprocket-wheels and engaging thefixed sprocket-wheel.

6. In a rake, in combination, a supportingframe, a shaft journaled onthe frame and provided with cross arms, a stationary sprocket concentricwith the shaft, a pair of rakes pivoted to the opposite ends of thecross-arms, a pair of sprocket-wheels each of which comprises an outeror tooth section and an inner or hub section in which one of the rakesis fixed and which is adjustable with relation to its companiontooth-section.

HENRY A. ADAMS.

Witnesses:

JOHN R. WILLSON, H. W. DICUS.

